CN1914819B - 利用干扰电平控制步长的回声消除器 - Google Patents

利用干扰电平控制步长的回声消除器 Download PDF

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Publication number
CN1914819B
CN1914819B CN200580003444XA CN200580003444A CN1914819B CN 1914819 B CN1914819 B CN 1914819B CN 200580003444X A CN200580003444X A CN 200580003444XA CN 200580003444 A CN200580003444 A CN 200580003444A CN 1914819 B CN1914819 B CN 1914819B
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CN
China
Prior art keywords
signal
echo
vector
stepping
filter
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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CN200580003444XA
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English (en)
Chinese (zh)
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CN1914819A (zh
Inventor
沃尔夫冈·布罗克斯
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Koninklijke Philips NV
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NXP BV
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Publication of CN1914819A publication Critical patent/CN1914819A/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
    • H04B3/23—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers
    • H04B3/234—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other using a replica of transmitted signal in the time domain, e.g. echo cancellers using double talk detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/085—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using digital techniques

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Noise Elimination (AREA)
  • Telephonic Communication Services (AREA)
CN200580003444XA 2004-01-29 2005-01-20 利用干扰电平控制步长的回声消除器 Expired - Fee Related CN1914819B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04100326 2004-01-29
EP04100326.0 2004-01-29
PCT/IB2005/050236 WO2005074156A1 (en) 2004-01-29 2005-01-20 Echo canceller with interference-level controlled step size

Publications (2)

Publication Number Publication Date
CN1914819A CN1914819A (zh) 2007-02-14
CN1914819B true CN1914819B (zh) 2010-08-11

Family

ID=34814376

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200580003444XA Expired - Fee Related CN1914819B (zh) 2004-01-29 2005-01-20 利用干扰电平控制步长的回声消除器

Country Status (8)

Country Link
US (1) US7813497B2 (de)
EP (1) EP1714398B8 (de)
JP (1) JP4836032B2 (de)
KR (1) KR101045712B1 (de)
CN (1) CN1914819B (de)
AT (1) ATE426274T1 (de)
DE (1) DE602005013362D1 (de)
WO (1) WO2005074156A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1914819B (zh) 2004-01-29 2010-08-11 Nxp股份有限公司 利用干扰电平控制步长的回声消除器
JP4438720B2 (ja) 2005-08-17 2010-03-24 ソニー株式会社 エコーキャンセラ及びマイク装置
KR20080058870A (ko) * 2006-12-22 2008-06-26 에스케이텔레시스 주식회사 Ｉｃｓ중계기의 간섭제거장치
US8369511B2 (en) * 2006-12-26 2013-02-05 Huawei Technologies Co., Ltd. Robust method of echo suppressor
CN101227537B (zh) * 2007-01-19 2010-12-01 中兴通讯股份有限公司 一种宽带声学回声消除方法
EP1950739B1 (de) * 2007-01-23 2011-09-14 Siemens Aktiengesellschaft Österreich Verfahren zur Identifikation von Signalen gleichen Ursprungs
KR100830695B1 (ko) * 2007-06-22 2008-05-20 에스케이텔레시스 주식회사 디지털 적응 간섭제거 중계기
KR100862715B1 (ko) * 2007-06-22 2008-10-10 에스케이텔레시스 주식회사 디지털 적응 간섭제거 중계기
US8331552B2 (en) * 2008-05-09 2012-12-11 Agere Systems Llc Detection of double talk in telecommunications networks
US8208649B2 (en) * 2009-04-28 2012-06-26 Hewlett-Packard Development Company, L.P. Methods and systems for robust approximations of impulse responses in multichannel audio-communication systems
US20110102540A1 (en) * 2009-11-03 2011-05-05 Ashish Goyal Filtering Auxiliary Audio from Vocal Audio in a Conference
US9123322B2 (en) 2011-10-14 2015-09-01 Panasonic Intellectual Property Management Co., Ltd. Howling suppression device, hearing aid, howling suppression method, and integrated circuit
CN103262572A (zh) * 2011-10-14 2013-08-21 松下电器产业株式会社 振鸣抑制装置、助听器、振鸣抑制方法及集成电路
US8896651B2 (en) * 2011-10-27 2014-11-25 Polycom, Inc. Portable devices as videoconferencing peripherals
EP2590437B1 (de) * 2011-11-03 2015-09-23 Siemens Medical Instruments Pte. Ltd. Periodisches Adaptieren einer Rückkopplungsunterdrückungseinrichtung
CN103391381B (zh) * 2012-05-10 2015-05-20 中兴通讯股份有限公司 回声消除方法及装置
US9473646B1 (en) * 2013-09-16 2016-10-18 Amazon Technologies, Inc. Robust acoustic echo cancellation
US9344579B2 (en) * 2014-07-02 2016-05-17 Microsoft Technology Licensing, Llc Variable step size echo cancellation with accounting for instantaneous interference
CN106782593B (zh) * 2017-02-27 2019-10-25 重庆邮电大学 一种用于声学回声消除的多带结构自适应滤波器切换方法
US10819857B1 (en) * 2019-01-22 2020-10-27 Polycom, Inc. Minimizing echo due to speaker-to-microphone coupling changes in an acoustic echo canceler
CN111469260B (zh) * 2020-04-28 2022-04-12 王安全 一种干法生产制备的石膏砌块
CN113704684B (zh) * 2021-07-27 2023-08-29 浙江工商大学 一种集中式融合鲁棒滤波方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535206A (en) * 1980-04-09 1985-08-13 At&T Bell Laboratories Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
CN1139501A (zh) * 1993-12-23 1997-01-01 诺基亚电信公司 确定回声消除器中回声区间的方法
US5734715A (en) * 1995-09-13 1998-03-31 France Telecom Process and device for adaptive identification and adaptive echo canceller relating thereto

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1175521A (en) 1980-04-09 1984-10-02 David D. Falconer Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
JPH0481133A (ja) * 1990-07-20 1992-03-13 Fujitsu Ltd エコーキャンセラー
US5606550A (en) * 1995-05-22 1997-02-25 Hughes Electronics Echo canceller and method for a voice network using low rate coding and digital speech interpolation transmission
FR2738695B1 (fr) 1995-09-13 1997-11-14 France Telecom Procede et dispositif d'identification adaptative et annuleur d'echo adaptatif incluant un tel dispositif
FR2748184B1 (fr) 1996-04-26 1998-07-17 France Telecom Procede et dispositif d'annulation d'echo
JPH09266456A (ja) 1996-03-28 1997-10-07 Mitsubishi Electric Corp エコーキャンセラ
US7242762B2 (en) * 2002-06-24 2007-07-10 Freescale Semiconductor, Inc. Monitoring and control of an adaptive filter in a communication system
CN1914819B (zh) 2004-01-29 2010-08-11 Nxp股份有限公司 利用干扰电平控制步长的回声消除器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4535206A (en) * 1980-04-09 1985-08-13 At&T Bell Laboratories Echo cancellation in two-wire full-duplex data transmission with estimation of far-end data components
CN1139501A (zh) * 1993-12-23 1997-01-01 诺基亚电信公司 确定回声消除器中回声区间的方法
US5734715A (en) * 1995-09-13 1998-03-31 France Telecom Process and device for adaptive identification and adaptive echo canceller relating thereto

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CN 1139501 A,全文.
全文.

Also Published As

Publication number Publication date
EP1714398B8 (de) 2009-08-12
EP1714398B1 (de) 2009-03-18
US7813497B2 (en) 2010-10-12
JP4836032B2 (ja) 2011-12-14
CN1914819A (zh) 2007-02-14
WO2005074156A1 (en) 2005-08-11
KR20060128990A (ko) 2006-12-14
ATE426274T1 (de) 2009-04-15
US20090022074A1 (en) 2009-01-22
JP2007522720A (ja) 2007-08-09
EP1714398A1 (de) 2006-10-25
KR101045712B1 (ko) 2011-06-30
DE602005013362D1 (de) 2009-04-30

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SE01 Entry into force of request for substantive examination
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Owner name: NXP CO., LTD.

Free format text: FORMER OWNER: KONINKLIJKE PHILIPS ELECTRONICS N.V.

Effective date: 20071019

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Effective date of registration: 20071019

Address after: Holland Ian Deho Finn

Applicant after: Koninkl Philips Electronics NV

Address before: Holland Ian Deho Finn

Applicant before: Koninklijke Philips Electronics N.V.

C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100811

Termination date: 20200120